THE ELECTROLYSER CONTAINS KOH, AN EXTREMELY CAUSTIC SUBSTANCE. DO NOT LET KOH COME IN CONTACT WITH THE SKIN OR EYES. FOR SKIN CONTACT FLUSH WITH WATER AND THEN NUETRALIZE THE AREA WITH VINEGAR. FOR EYE CONTACT FLUSH WITH LARGE AMOUNTS OF WATER AND SEEK IMMEDIATE MEDICAL ATTENTION. KOH IS NO MORE DANGEROUS THAN MANY HOUSEHOLD CHEMICALS SUCH AS DRAIN CLEANER OR OVEN CLEANER. PROPER SAFETY PROCEDURES SHOULD BE FOLLOWED SUCH AS GLOVES AND GOGGLES.

1. Only use distilled water. Drinking water can be used if that is all that is available, tap water should never be used. The best water to use is reverse-osmosis, de-ionized water, as it is nearly pure water. 2. Use the 2 fl. oz. syringe provided. Pull enough water into the syringe to replenish the unit. 3. Remove the H2 side hose and connect the syringe to the nylon hose barb. 4. DO NOT REMOVE THE O2 SIDE HOSE, LEAVE IT CONNECTED TO THE TEST TUBES AND ELECTROLYSER. REMOVING THE O2 SIDE TEST TUBE MAY ALLOW KOH TO SPLASH OUT AND CAUSE SERIOUS INJURY. 5. Slowly push the syringe plunger and fill the unit. 6. Watch for bubbles to come out of the O2 side test tube. 7. Before removing the syringe pull the plunger out to near its original position while making sure not to pull back too far and pull vinegar from the O2 side into the electrolyser. This will remove any pressure and create a slight vacuum so no KOH is forced out when the syringe is removed. 8. Remove the syringe and replace the H2 hose. 9. Filling the H2 side is usually enough, and the water level will balance when the unit is operated.

Adjusting the system for optimum performance:

The system works best when the H2 and O2 sides of the electrolyser are balanced.

1. Look at the KOH level of the electrolyser. The two sides should be within a ??ch of each other. 2. If not, add a little distilled water to either the H2 final backpressure test tube, or vinegar to the O2 final backpressure tube. Wait for 20 minutes or so and recheck level. Add more water or vinegar as needed. Do not let the test tubes get too full, especially the O2 final backpressure tube.